Line Harmonics of Converters with DC-Motor Loads

Graham, A.D.; Schonholzer, Emil T.

doi:10.1109/tia.1983.4504160

Cited by 46 publications

(8 citation statements)

References 7 publications

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“…it has been shown [ 1 ] that thejoint real power of harmonic components in a single-phase network is directed away from a distortion-producing source. The magnitude of this real power in the harmonic components is adirect function of the real immittance component in the equivalent network beyond the measuring cross section.…”

Section: Introductionmentioning

confidence: 99%

On techniques for localization of sources producing distortion in three‐phase networks

Swart¹,

Wyk

Case³

1996

Int Trans Elec Energy Syst

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This paper exrends the underlying network theory defining the direelion of harmonic power in single-phase systems to three-phase systems. By employing symmetrical component theory f o r multi-frequency systems, zero-, positive-and negative-phase sequence components may be considered separately. However; the theoretical results and the modelling show that single-point measurements f o r the localization of distortion-producing sources are not practical when these sources are distributed over the network.

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Section: Introductionmentioning

confidence: 99%

On techniques for localization of sources producing distortion in three‐phase networks

Swart¹,

Wyk

Case³

1996

Int Trans Elec Energy Syst

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“…4, the root locus can be explained by using the closed-loop transfer function in Eq. (2). The placement of poles and zero on Z-plane are shown in Fig.…”

Section: The Design Of the Proportional Plus Resonant Controllermentioning

confidence: 99%

“…The voltage source connected nonlinear loads can generate the harmonics into the electric systems. These harmonics cause many disadvantages [1][2][3][4][5][6][7][8] such as loss in transmission lines and electric devices, protective device failures, measuring instrument malfunction and short-life electronic equipment in the system. Nowadays, there are several nonlinear loads.…”

Section: Introductionmentioning

confidence: 99%

The Implementation of Active Power Filter using Proportional plus Resonant Controller

Santiprapan¹,

Areerak²

2017

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Abstract. This paper presents the harmonic elimination using an active power filter (APF) for three-phase system. The design and performance comparison study of the compensating current controllers are explained. The performance of the PI controller and the proportional plus resonant (P+RES) controller are compared in the paper. Moreover, the hardware implementation of the considered system is also presented in this paper. For the experimental results, the P+RES controller can provide a good performance to control the compensating current compared with using the PI controller.

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“…Method lI( namely Graham-Schonholzer): according to the document [6,14], introduce both IB and rB, with r D are used to describe the rotor current 12. Among them, IB is the current value flowing though one bridge arm in the end of phase changing; rB represents the ripple degree of the bus direct current.…”

Section: N-l N+lmentioning

confidence: 99%

“…Among them, IB is the current value flowing though one bridge arm in the end of phase changing; rB represents the ripple degree of the bus direct current. rB=!1i/IB, according to document [6,14], ['L l=-[ cos{l+ y+-)+co�-(--fJ-a-y)smPJ ()) 3 3 SIn-SIn-r B g n cos-…”

Section: N-l N+lmentioning

confidence: 99%

Study about the current oscillating and harmonic analysis of high frequency chopped wave cascade speed control system

Zhang¹,

Wang²

2010

2010 2nd International Conference on Industrial and Information Systems

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The chopped wave cascade speed control system is a promising lower energy consumption and reduce pollutants discharging technology. Because the electronics and electric devices are adopted to be its kernel component, it is one of the main harmonic sources for the power grid, and consuming lots of reactive power. The analysis and calculation about its harmonics could be used to be evidence of the hazards and burden to the power grid and whether the compensating device is added to or not. In this paper, the current harmonic from it and the characteristics on the harmonics are illustrated in details. The calculation methods about it are presented and summed up. The correctness of the above theory and analysis are validated by the simulation model. In addition, the oscillating current in some special speed range is discussed and probed. The methods and explanations offered are meaningful and worthy for engineering design of the chopped wave cascade speed control system.

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Line Harmonics of Converters with DC-Motor Loads

Cited by 46 publications

References 7 publications

On techniques for localization of sources producing distortion in three‐phase networks

On techniques for localization of sources producing distortion in three‐phase networks

The Implementation of Active Power Filter using Proportional plus Resonant Controller

Study about the current oscillating and harmonic analysis of high frequency chopped wave cascade speed control system

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